Brake for phonographs.



L. H. OTTO. MR'H FOR PHONOGRAPHS, APPLJUATIDN FILED MAY 13,1911.

fi, MM

Patenm i LGU'IS E. OTTO, OF CEIDhR MILLS, MINNESOTA.

IBR/AXE FDR ."E'HONGRAPHS.

Be it known that L Louis H. Ofr'ro, a citizen of the 'United' States,residing at CcdhrMil'lsgin the county of Meeker and State o*- Minnesota,havel invented new and useful Imrn'ovements in Brakes- ;t'orPhonographe, of which the following .is a specification'.

An objectl of the invention is to provide a brake for phonographs, torautomatically' stopping` the operation ot Vthe phonograp i whenA thereproducen needle has reached the end of the record;

My device is adaptable ton phonographs using either disk or cylinderrecords and-ernA bodies among' other *features ineans tor engagementwith the controliing'l'ever and the reproducing arm of the machine,whereby the lever will be actuated to stop theA opera tion. of themachine when the needle attached to the reproducer ot' the reprod'ncerarm has reached the end ot' the record.

For the purpose mentioned, use is made of a rod connected nt one end tothe reproducer arm of the n1achine,n sleeve pivotally connected to theother end of the said rod, and a second rod adjustahly inounted in' thesaid sleeve, the said second rod being adapted to engage the controllingmeansV ot' the phonograph.

Reference is to be had to the accompanying drawings constitutingl a partof this specification, in which Similar characters of reference denotecorrespoinling parts in all the views, and in whichn Figure l is aperspective view of a phono,- graph showing' my device attached thereto,parte being broken away to disclose the underlying structure. Fig. 2 aplan view of a phonograph record showing a groove provided lon the upperSurface thereof and, adapted to receive the needle 'of the phonographtherein.

Referring more particularly to the views, I provide a rod l0 having aclamp 1l formed at one cnd thereof for connection with a reproducer arm'l2 of a phonograph 13 and ivotall'y mounted o n the other end of therod l0 is a sleeve lll, the other end of the said sleeve being connectedto a chain .l5 and adapted to Slidahly receive therein a rod '16. Theother end oi' thc rod i6 is connected to acontrolling lever '19 of thephonograph 13 and has an end of the chain 15 connected thereto. A record20 having the usual sound producing lines formed thereon is adapted tohe disposed on the phonographl ySpcei'tat'on of Iiettcrs atent.appnanmmea'ney is, 1911. semi Nb. messe.

PaftentedAug. 1, 1914.

in the usual manner and the said record is provided with al groove 21,formedI at the inner end oi". the sound producing lines as shown inFig. 1. The usual sound' reproducingr needle 2Q is attached to areproducer 23 secured to the arm 12 and' when the Said,

needle 22 is movedY to operate over the sound producing lines of therecord 20 it is adapted to be received in the groove 21 as will behereinafter more fully disclosed.

'.ln the operation of the device described, the arm 12 when in normalposition will be `arrangeai so that the needle 22 will lie adjacent theouter edge ofthe record 9.0 so that when the record is rotated,theneedle will he advanced over the sound producinglines toward the innerportion or nucleus of the record, it being understwd' that thecontrolling lever 1E) must be disengaged from the ueual dish' supportingthe* record and r which imparts rotation thereto in order that the diskcany rotate and impart rotationito ,the record so that the arln 12 willswing toward the center of the record as the needle is advanced over thesound roducing lines.

Now it will be seen that wien the arm 12 swings inwardly the rod 10 willswing rearwardly, the said rod being rigid withl the amr and, inconsequence thereof, a pull will he exerted on the sleevel 14 which,connected to the rod 1G hy the chain 15, will impart a pull on the rod1G when the chain 15 becomes taut`l` the chain 15 being so adjusted withrespect to the sleeve 14 and rod 16 that at the moment the needlereaches the end ot the sound producing lines on the record, the pull onthe rod 16 will be suiiicient to actuate the controlling lever 1i) andstop the rotation of the record. It will, therefore, he

eeen that the length of the chain 15 can he readily adjusted and willassunie its maxiinuin tension when the needle 22 reaches the inner endofthe sound producing lines of the `ecord, und it will he furtherunderstood that. the outward sliding movement of the sleeve relativelyto the rod will result in the chain bccominlr taut to exert the requiredpull on the ro( 16.

From the foregoing dcscriptionit will be seen that a device is providedfor automati cally stopping the rotation of a record when the needle hasreached the inner end thereof and it will he further vSeen that asuitable ndjustmcnt of my device can he accomplished so that the sainecan be used in connection with various Sized records.

y ping the io'eni nib-er being adopted to operette ovee llie ievolublemember, ond e stop leven for stop- Lion of the revolnble member,rofl-baving; pivotal eonneeiion with elle Seial Stop lever, n sleeve`slidlably receiving fthe ree end oi? elle roel, n second rod rigid on'ehe swinging member ,and extending :it f' angles thereto, with ellefree endl of ne .,econcl rofl having pivotal connect-ion with ehe saidsleeve, and menne connecting ille first mentioned roel with the secondmenfinned rod for imparting-o, pull on the ivsf mentioned rod io actuelethe seid stop leveirI :ind slop the rotation of the seid ievolnblemember when theA said swinging inennbei rencliee the center oi thesiiicl i'evolnble inembei, *che advancement oi2 the soicl voel withlelle said swinging member beinfg,r ndlnpbecl io exert o pull on thesaid sleeve lo aclanite'ibe irsi menlioneflrod tbvongb illie niel'ilmsfully described the invention,"

li o bese, o. member.' mounted en swing thereon enel n second' amberrevoluble thereon, tbe swinging moonen linnn of ille seid' connecbingmenne lrind' een ete blie ssiiol stop leven9 elle relative outvvai'dsliding nniven'ieni of tbe lrsl, moniioneol iod nml sleeve being limited'by the said means. 4 2. lin combination with e base, a member nionnledto swing llieifeon ond a second member `ievohible thereon, the swingingmembei' being;v nflzipted lo operante over the ievoluble member, and nstop levei` for conlslrolliungg the rotation roil ille revoluble memben,of ai rofl lieving pivotal conneetion with the sind stop lever, a,sleeve having slidnlole conneetion with the soicl rofl., a second rodrigidi on the swinging member and having pivotal connection with tbeseid sleeve, and ,n chain lim/ing connection with the first mentionedrod incl with tbe said sleeve for limiting the sliding movement of thesleeve relatively tothe seid ii'sb i'nentioned rofl, the length ol thesaid chain being adopted lo be inci'eoeecl or deci-eased ioi' holdingthe Seidl sleeve rigid relatively to the said position when llie smidchnin is in tension.

lin testimony wheveof'l fallin my signature in presence oli' twoWitnesses. LUTIS H., COTTO# Witnesses:

(C. (Si. @nomen Emmen lll. Unno.

